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Finding the Fourth Proportional to 368,996.80, 553,495.20 and 102,798.40

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Solution

The fourth proportional to 368,996.80, 553,495.20 and 102,798.40 is: 154,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,996.80 : 553,495.20 = 102,798.40 : x
  2. Step 2: Convert to fraction form
    368,996.80/553,495.20 = 102,798.40/x
  3. Step 3: Cross multiply
    368,996.80x = 553,495.20 × 102,798.40
  4. Step 4: Simplify right side
    368,996.80x = 56,898,420,967.68
  5. Step 5: Solve for x
    x = 56,898,420,967.68/368,996.80
  6. Step 6: Final answer
    x = 154,197.60

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